525481740 has 288 divisors, whose sum is σ = 1919998080. Its totient is φ = 113799168.

The previous prime is 525481739. The next prime is 525481757. The reversal of 525481740 is 47184525.

It is a super-2 number, since 2×525481740² = 552262118146855200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 525481695 and 525481704.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2667322 + ... + 2667518.

It is an arithmetic number, because the mean of its divisors is an integer number (6666660).

Almost surely, 2^525481740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525481740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959999040).

525481740 is an abundant number, since it is smaller than the sum of its proper divisors (1394516340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525481740 is a wasteful number, since it uses less digits than its factorization.

525481740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 525481740 is about 22923.3884929781. The cubic root of 525481740 is about 806.9609946000.

The spelling of 525481740 in words is "five hundred twenty-five million, four hundred eighty-one thousand, seven hundred forty".